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[poincare] Add tests on atanh approximation

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Émilie Feral
2020-03-05 17:47:00 +01:00
committed by LeaNumworks
parent a2e9d8efd6
commit d431642e60
1 changed files with 7 additions and 0 deletions
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7
poincare/test/approximation.cpp
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@@ -778,6 +778,13 @@ QUIZ_CASE(poincare_approximation_trigonometry_functions) {
assert_expression_approximates_to<float>("atanh(𝐢-4)", "-0.238878+1.50862×𝐢", Radian, Cartesian, 6);
assert_expression_approximates_to<float>("atanh(𝐢-4)", "-0.238878+1.50862×𝐢", Degree, Cartesian, 6);
// Check that the complex part is not neglected
assert_expression_approximates_to<double>("atanh(0.99999999999+1.0ᴇ-26×𝐢)", "13.01+5ᴇ-16×𝐢", Radian, Cartesian, 4);
assert_expression_approximates_to<double>("atanh(0.99999999999+1.0ᴇ-60×𝐢)", "13.01+5ᴇ-50×𝐢", Radian, Cartesian, 4);
assert_expression_approximates_to<double>("atanh(0.99999999999+1.0ᴇ-150×𝐢)", "13.01+5ᴇ-140×𝐢", Radian, Cartesian, 4);
assert_expression_approximates_to<double>("atanh(0.99999999999+1.0ᴇ-250×𝐢)", "13.01+5ᴇ-240×𝐢", Radian, Cartesian, 4);
assert_expression_approximates_to<double>("atanh(0.99999999999+1.0ᴇ-300×𝐢)", "13.01+5ᴇ-290×𝐢", Radian, Cartesian, 4);
// WARNING: evaluate on branch cut can be multivalued
assert_expression_approximates_to<double>("acos(2)", "1.3169578969248×𝐢", Radian);
assert_expression_approximates_to<double>("acos(2)", "75.456129290217×𝐢", Degree);